Things You'll Need
Instructions
Download otheros.self from the PlayStation website (see Resources below). This is the "other OS" installation software from Sony. Save this to your computer's hard drive.
Download a Linux distribution to install on your PS3. This example will use Ubuntu Linux. Get the latest release from its site in the Resources below.
Burn the Ubuntu Linux CD image file to a CD with your CD burning software.
Format the hard drive on your PlayStation and prepare it for the OS. Go to "Settings->System Settings." Choose the "Format Utility" and then "Hard Disk." Allocate at least 10 GB for your "other OS."
Go back to your computer and plug in your memory stick. Create a directory on the memory stick called "PS3." Create a subdirectory in here called "otheros."
Copy "otheros.self" to the "otheros" directory on your memory stick. Rename this file "otheros.bld."
Eject the memory stick from your computer and insert it into the PS3.
On the PS3, go tot the "Settings" menu and then choose "System Settings." Select "Install other OS." Insert your Ubuntu Linux CD into the PS3. Restart the system.
Hit "Enter" on your keyboard when the Ubuntu boot menu comes up. Booting can take a long time on some systems.
Go to "System-->Administration-->Services" on the Ubuntu desktop. You need to stop several of the processes because they interfere with the Ubuntu installation. Uncheck everything except the following programs: CPU frequency manager (powernowd), Graphical login manager (gdm) and System communication bus (dbus).
Kill unneeded processes. Go to "System->Administration->System monitor." Click the "Processes" tab. Right-click on each process and select "Kill." The necessary processes will restart themselves. The others will die off.
Click the "Install" icon on the desktop.
Create an Ubuntu login account.
When prompted by the system for the install location, select "Manual." Then pick the drive you formatted in Step 4. Follow the prompts to install Ubuntu on your PS3.
Reboot when install is completed. Remove the Ubuntu CD from your PS3.